This nonsense again? John Hislop runs a gambling blog for money, and published this googlebait years ago to get sweet SEO candy. Clearly it's still working.
When I want to. Not when you or the doctor, or everyone else in my life, wants me to...
(Now deceased) Addict who smoked from a wheelchair with an attached oxygen tank at his daughters wedding. He did not make it to see his first grandchild.
It is true though. When you really want to, stopping isn't that hard. I chain smoked for 13 years. And then the time came when I really wanted to stop (I had an upcoming marriage and just needed that money). And because I really wanted to, I did stop.
I'd still suggest to make a plan beforehand though. Mine were nicotine free cigarettes. They really helped my hands to stay occupied and, even more important, I still could go on a smoking break at work from time to time. I let that fade out slowly.